[MLIR][GPU] Fix forward declaration of Region class.

I forward declared mlir::Region as a struct by mistake :(

diff --git a/mlir/include/mlir/Dialect/GPU/ParallelLoopMapper.h b/mlir/include/mlir/Dialect/GPU/ParallelLoopMapper.h
index 34faf43..92fb09f 100644 (file)
--- a/mlir/include/mlir/Dialect/GPU/ParallelLoopMapper.h
+++ b/mlir/include/mlir/Dialect/GPU/ParallelLoopMapper.h
@@ -16,7 +16,7 @@
 
 namespace mlir {
 
-struct Region;
+class Region;
 
 namespace gpu {